SGH-X150 Flow Chart of Troubleshooting
2-
15
2-2-2. DCS Rx
Normal condition
catch the
channel ?
Check PAM100
pin 12
≥
-65
dbm ?
Check U102
pin 19,20
≥
-65dBm ?
Yes
No
No
Check PAM100
pin 18
≥
-65
dbm ?
Yes
No
Yes
Check ANT,
L102,C103,C104,L113
Resolder or change
RFS100, C102,L100,L101,L111
Resolder or change
PAM100
Resolder or change
F102,C117,C118,L105
Resolder or change
UCP200
CONTINOUS RX ON
RF INPUT : 698CH
AMP : -50dbm
Check U102
pin 13 = 2.9V
Yes
Resolder or change
U107
Yes
No
No
1
2
3
4
5
Содержание SGH-X150
Страница 11: ...SGH X150 Flow Chart of Troubleshooting 2 7 1 1 2 ...
Страница 13: ...SGH X150 Flow Chart of Troubleshooting 2 9 1 2 ...
Страница 15: ...SGH X150 Flow Chart of Troubleshooting 2 11 Main PCB 1 LCD PCB 2 ...
Страница 18: ...SGH X150 Flow Chart of Troubleshooting 2 14 5 1 2 3 4 ...
Страница 20: ...SGH X150 Flow Chart of Troubleshooting 2 16 1 2 3 4 5 ...
Страница 33: ...6 1 6 SGH X150 Block Diagrams ...